2018 Audi A4 2.0 TDI S Line

Overview

• Make: Audi
• Model: A4
• Trim: S Line
• Version: 2.0 TDI S Line S tronic FWD Euro 6 4dr
• Year: 2018
• Mileage: 107,000 miles
• Fuel: Diesel
• Body: Saloon, 4 doors, 5 seats
• Engine: 2.0 litres
• Gearbox: Automatic (S tronic)
• Drive: Front-wheel drive
• Colour: Grey
• CO2: 109 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2018 Audi A4 S Line has covered 107,000 miles, around 32,000 more miles than is typical for its age. The dealer is asking £8,975, which is £670 below the AskCar estimate of £9,645. To work out the AskCar estimate, we analyse UK dealer adverts for 1,428 Audi A4 cars across different ages and specifications. This car was first seen in our listings data 20 days ago. We checked its advertised mileage against the government's MOT record, and they match. It is for sale at Midlands Motors in Birmingham. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 2 November 2026.

How we estimate prices and check cars

Price

Fair price: £670 (6%) under the AskCar estimate of £9,645.

The AskCar estimate is our expected asking price for this car. It uses UK dealer asking prices, accounting for make, model, trim, version, age, mileage, fuel, gearbox, body type, driven wheels, engine size and power. It is an advertised price, not a confirmed sale price.

It draws on 1,428 priced Audi A4 adverts across different ages and specifications, as of 2 November 2026.

A 2018 Audi A4 with the 2.0 diesel engine is typically advertised at £12,200: the median of the 48 for sale on AskCar, as of 2 November 2026.

Time on sale

This 2018 Audi A4 has been on sale for at least 20 days.

Price history

AskCar first saw this advert on 13 October 2026 at £8,975. Its asking price has not changed.

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: valid until 23 May 2027.

It has had 7 MOTs. The latest, on 14 May 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 103,393 miles, which matches the advertised 107,000 miles.

Advertised mileage is about 32,000 miles higher than the median mileage of a 2018 Audi A4 on AskCar.

Similar cars

6 other 2018 Audi A4 S Line 2.0 diesel automatic saloons are for sale at UK dealers, from £11,500 to £16,990, as of 2 November 2026.

The 3 closest to this car in mileage:

• 2018 Audi A4 S Line, 2.0 diesel saloon, grey. Mileage: 91,400 miles. Price: £11,500, £2,525 more than this car. Dealer: Freeman Motors in Oldham. AskCar page: https://askcar.co.uk/car/audi-a4-2018-9dff009210b5
• 2018 Audi A4 S Line, 2.0 diesel saloon, silver. Mileage: 86,504 miles. Price: £12,950, £3,975 more than this car. Dealer: Campbell Trade Sales in Armagh. AskCar page: https://askcar.co.uk/car/audi-a4-2018-e865bfbf0117
• 2018 Audi A4 S Line, 2.0 diesel saloon, grey. Mileage: 83,000 miles. Price: £12,995, £4,020 more than this car. Dealer: Cars of Conwy in Colwyn Bay. AskCar page: https://askcar.co.uk/car/audi-a4-2018-af10c433b511